The CD changer does not seem to "mix" across multiple CD's - only one at a time... (ie; mix disk 1-play all of disk 1. mix disk 2-play all of disk 2.etc...) Is this true? or am I missing something in the menu/set-up?
I had the same experience in my 00 Passat 4 motion.....the manual states that the VW OEM changer mixes several songs on one CD before switching...I found it to play almost the whole CD every time, in addition, it repeated a song every so often.
Check the manual and see if it sheds any light, but it doesn't sound unusual to me.
Of course, the MP3 install (using spockcat's instructions) is quite simple, and the sound is as good as the changer.....